Is 21767 a prime number?

21 767 is an odd number, because it is not evenly divisible by 2.

Find out more:

• What is an even number?

A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 21 767 is about 147.536.

Thus, the square root of 21 767 is not an integer, and therefore 21 767 is not a square number.

Anyway, 21 767 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 21 767) is the result of the product of this number (21 767) by itself (i.e., 21 767 × 21 767); the square of 21 767 is sometimes called "raising 21 767 to the power 2", or "21 767 squared".

The square of 21 767 is 473 802 289 because 21 767 × 21 767 = 21 767² = 473 802 289.

As a consequence, 21 767 is the square root of 473 802 289.

21 767 is a number with 5 digits.

The multiples of 21 767 are all integers evenly divisible by 21 767, that is all numbers such that the remainder of the division by 21 767 is zero. There are infinitely many multiples of 21 767. The smallest multiples of 21 767 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 21 767 too, since 0 × 21 767 = 0
• 21 767: indeed, 21 767 is a multiple of itself, since 21 767 is evenly divisible by 21 767 (we have 21 767 / 21 767 = 1, so the remainder of this division is indeed zero)
• 43 534: indeed, 43 534 = 21 767 × 2
• 65 301: indeed, 65 301 = 21 767 × 3
• 87 068: indeed, 87 068 = 21 767 × 4
• 108 835: indeed, 108 835 = 21 767 × 5
• etc.

• Preceding numbers: …21 765, 21 766
• Following numbers: 21 768, 21 769…

Nearest numbers from 21 767

• Preceding prime number: 21 757
• Following prime number: 21 773

• Is 0 a prime number?
• Is 1 a prime number?
• Is 2 a prime number?
• Is 2024 a prime number?
• Is 2025 a prime number?
• Is 2209 a prime number?

• Five thousand prime numbers

• Contact

• 21 767 est-il un nombre premier ?